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Keymap:

Specifying the Servlet Initialization Parameters

You can customize the servlet initialization by specifying initialization parameters of the servlet.
This allows the servlet to perform various one-time activities by overriding the init method of the Servlet interface.
An initialization attribute is defined through the Name and Value parameters.
In the Web application deployment descriptor web.xml, these parameters are presented as <param-name>
and <param-value> elements.